Here a few prose readings that people have featured in their weddings.

From Poetry and Marriage
By Wendell Berry
The meaning of marriage begins in the giving of words.  We cannot join ourselves to one another without giving our word.  And this must be an unconditional giving, for in joining ourselves to one another we join ourselves to the unknown.  We can join one another only by joining the unknown.  We must not be misled by the procedures of experimental thought: in life, in the world, we are never given two known results to choose between, but only one result that we choose without knowing what it is.
Marriage rests upon the immutable givens that compose it: words, bodies, characters, histories, places.  Some wishes cannot succeed; some victories cannot be won; some loneliness is incorrigible.  But there is relief and freedom in knowing what is real; these givens come to us out of the perennial reality of the world, like the terrain we live on.  One does not care for this ground to make it a different place, or to make it perfect, but to make it inhabitable and to make it better.  To flee from its realities is only to arrive at them unprepared.
Because the condition of marriage is worldly and its meaning is communal, no one party to it can be solely in charge.  What you alone think it ought to be, it is not going to be. Where you alone think you want it to go, it is not going to go.  It is going to go where the two of you – and marriage, time, life, history, and the world – will take it.  You do not know the road; you are committing your life to a way.

John O’Donohue
Solitude is the sense of space as nourishing. What usually happens with solitude is that people equate it with loneliness, which frightens them.  But I don’t know anyone who has a good friendship or love relationship in which there are not long periods of solitude.  There is a way in which we treat our relationships almost like a colonial expedition: we want to colonize the space, all the territory in between, until there is no wilderness left.  Most couples who have deadened in each other’s presence have colonized their space this way.  They have domesticated each other beyond recognition.  Sometimes you see a beautiful woman who quickens your heart.  Then you meet her again years later, and she has become a domesticated relic of who she once was, and you think, Where is the dangerous vision that I saw in her?  The same happens to men.
I think it is more interesting to be with somebody who still has his or her wilderness territory – and by that I don’t mean bleak, burned-out, damaged areas where wounding has occurred; rather, I mean genuine wilderness. Upon seeing that in the other person, you promise yourself: One thing I will never do is try to domesticate her wilderness.  Because the authenticity of her difference and the purity of her danger and the depth of her affection are all being secretly nourished by that wilderness, as all of my spirit is being nourished by my own wilderness.  There is a great tradition in the U.S., even more so than in other countries, of the solitary person going out into the wild.  It’s a shame that this model is not now being revived for the voyage into our inner wilderness.

Letters
By Rainer Maria Rilke
Marriage is in many ways a simplification of life, and it naturally combines the strengths and wills of two young people so that, together, they seem to reach farther into the future than they did before. Above all, marriage is a new task and a new seriousness, – a new demand on the strength and generosity of each partner, and a great new danger for both.
The point of marriage is not to create a quick commonality by tearing down all boundaries; on the contrary, a good marriage is one in which each partner appoints the other to be the guardian of their solitude, and thus they show each other the greatest possible trust. A merging of two people is an impossibility, and where it seems to exist, it is a hemming-in, a mutual consent that robs one party or both parties of their fullest freedom and development. But once the realization is accepted that even between the closest people infinite distances exist, a marvelous living side by side can grow up for them, if they succeed in loving the expanse between them, which gives them the possibility of always seeing each other as a whole and before an immense sky.
That is why this too must be the criterion for rejection or choice: whether you are willing to stand guard over someone else’s solitude, and whether you are able to set this same person at the gate of your own depths, which he learns of only through what steps forth, in holiday clothing, out of the great darkness.
Life is self-transformation, and human relationships, which are an extract of life, are the most changeable of all, they rise and fall from minute to minute, and lovers are those for whom no moment is like any another. People between whom nothing habitual ever takes place, nothing that has already existed, but just what is new, unexpected, unprecedented. There are such connections, which must be a very great, an almost unbearable happiness, but they can occur only between very rich beings, between those who have become, each for his own sake, rich, calm, and concentrated; only if two worlds are wide and deep and individual can they be combined….
…For the more we are, the richer everything we experience is. And those who want to have a deep love in their lives must collect and save for it, and gather honey.

From The Irrational Season
By Madeleine L’Engle
But ultimately there comes a moment when a decision must be made. Ultimately two people who love each other must ask themselves how much they hope for as their love grows and deepens, and how much risk they are willing to take…It is indeed a fearful gamble…Because it is the nature of love to create, a marriage itself is something which has to be created, so that, together we become a new creature.
To marry is the biggest risk in human relations that a person can take…If we commit ourselves to one person for life this is not, as many people think, a rejection of freedom; rather it demands the courage to move into all the risks of freedom, and the risk of love which is permanent; into that love which is not possession, but participation…It takes a lifetime to learn another person…When love is not possession, but participation, then it is part of that co-creation which is our human calling, and which implies such risk that it is often rejected.
From Jazz
By Toni Morrison
It’s nice when grown people whisper to each other under the covers. Their ecstasy is more leaf-sigh than bray and the body is the vehicle, not the point. They reach, grown people, for something beyond, way beyond and way, way down underneath tissue. They are remembering while they whisper the carnival dolls they won and the Baltimore boats they never sailed on. The pears they let hang on the limb because if they plucked them, they would be gone from there and who else would see that ripeness if they took it away for themselves? How could anybody passing by see them and imagine for themselves what the flavor would be like? Breathing and murmuring under covers both of them have washed and hung out on the line, in a bed they chose together and kept together nevermind one leg was propped on a 1916 dictionary, and the mattress, curved like a preacher’s palm asking for witnesses in His name’s sake, enclosed them each and every night and muffled their whispering, old-time love. They are under the covers because they don’t have to look at themselves anymore; there is no stud’s eye, no chippie glance to undo them. They are inward toward the other, bound and joined by carnival dolls and the steamers that sailed from ports they never saw. That is what is beneath their undercover whispers.

From Gift From The Sea
By Anne Morrow Lindbergh
When you love someone, you do not love them all the time, in exactly the same way, from moment to moment. It is an impossibility. It is even a lie to pretend to. And yet this is exactly what most of us demand. We have so little faith in the ebb and flow of life, of love, of relationships. We leap at the flow of the tide and resist in terror its ebb. We are afraid it will never return. We insist on permanency, on duration, on continuity; when the only continuity possible, in life as in love, is in growth, in fluidity – in freedom, in the sense that the dancers are free, barely touching as they pass, but partners in the same pattern.
The only real security is not in owning or possessing, not in demanding or expecting, not in hoping, even. Security in a relationship lies neither in looking back to what was in nostalgia, nor forward to what it might be in dread or anticipation, but living in the present relationship and accepting it as it is now. Relationships must be like islands, one must accept them for what they are here and now, within their limits – islands, surrounded and interrupted by the sea, and continually visited and abandoned by the tides.

Dinah Maria Mulock Craik
Oh, the comfort, the inexpressible comfort of feeling safe with a person, having neither to weigh thoughts nor measure words, but pouring them all right out, just as they are, chaff and grain together; certain that a faithful hand will take and sift them, keep what is worth keeping, and then with the breath of kindness blow the rest away.